While an "official" version 16.2 64-bit does not exist, the combination of the official Hiren's BootCD PE (x64) or a verified community-built ISO will give you exactly what you need. Follow the security steps outlined above, use Rufus with GPT/UEFI settings, and you will have the most powerful free PC repair tool on the planet.
The modern PE version includes essential diagnostic and recovery tools such as: Download | Hiren's BootCD PE hiren boot cd 162 iso download 64 bit exclusive